Study of Microscopic Black Holes at the LHC using Noncommutative inspired Geometry

• Author / Creator

  Emelideme, Kingsley

• :A study for a noncommutative (NC) black hole was performed using data recorded by the ATLAS detector using proton-proton collisions at a centre-of-mass energy of 7 TeV with an integrated luminosity of 502 +/- 9 inverse picobarn. A missing transverse energy trigger was used in this search. The efficiency of the trigger versus reconstructed missing transverse energy was determined. A missing transverse energy requirement was imposed in the analysis so that the trigger was at its maximum efficiency. A black hole production process having a cross-section of 4.67~pb was simulated with eight total dimensions, a higher dimensional Planck scale of 0.94 TeV and a black hole remnant mass of 3.6 TeV. The main goal of this thesis is to search study NC black holes in the ATLAS data. To achieve this, simulated Standard Model backgrounds events were used: QCD, t\ar{t}, W+jets and Z+jets processes. The significance of a possible black hole discovery using the ATLAS detector at the LHC was estimated after optimizing the signal yield and reducing the Standard Model simulated background contribution through the application of some derived selection criteria.

• Subjects / Keywords

  • LHC
  • ATLAS
  • Noncommutative geometry
  • Microscopic black holes

• Graduation date

  Fall 2013

• Type of Item

  Thesis

• Degree

  Master of Science

• DOI

  https://doi.org/10.7939/R3R093

• License

  This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for non-commercial purposes. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.